Performance Evaluation of Spaceborne Atomic Clock for BDS-3 Basic System
文献类型：会议论文
| 作者 | Sun, Guang1; Shen, Lirong2; Zou, Tongyuan1; Jia, Xiaolin3; Liu, Xiaogang3; Guo, Meijun1; Zhai, Wei1; Hong, Yingjie1; Wu, Jiali4 |
| 出版日期 | 2020 |
| 会议日期 | 2020-11-22 |
| 会议地点 | Chengdu, China |
| 关键词 | BDS spaceborne atomic clock Clock model Spectrum analysis Periodic characteristic |
| 卷号 | 652 LNEE |
| DOI | 10.1007/978-981-15-3715-8_1 |
| 页码 | 3-15 |
| 英文摘要 | At present, China’s BDS-3 basic system has been completed and started to provide global services. However, the accuracy of satellite clock difference seriously restricts the service performance of BDS, and the performance of satellite atomic clock directly determines the accuracy of satellite clock difference. To solve this problem, this paper studies and evaluates the performance of BDS-3 spaceborne atomic clock in detail. Based on the precision satellite clock data of BDS from August to October 2019, using the median method, this paper pre-processed the BDS-2 and BDS-3 data, and obtained the fitting residuals of the spaceborne atomic clock by using the polynomial fitting method. In addition, in the frequency domain, this paper studied and compared the periodic characteristics of spaceborne atomic clock of BDS-3 and BDS-2. The experimental results show that all the clock difference of BDS show significant periodic characteristics, and the main period of BDS satellite clock difference is 12 h and 24 h respectively, corresponding to 0.5 times, 1 times and 2 times of each satellite orbit period. Compared with BDS-2, the main period term of BDS-3 is clearer, more accurate and more stable. In addition, the experiment also shows that the period of satellite clock difference is different in different orbits and in the same orbit the periodic term of satellite clock difference is also different. The period term of BDS-3 is consistent with that of other MEO satellites. Finally, the performance analysis of BDS atomic clock shows that the performance of BDS-3 hydrogen atomic clock is better than that of BDS-2 atomic clock. © 2020, The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. |
| 产权排序 | 4 |
| 会议录 | China Satellite Navigation Conference, CSNC 2020 Proceedings: Volume III
 |
| 会议录出版者 | Springer |
| 语种 | 英语 |
| ISSN号 | 18761100；18761119 |
| ISBN号 | 9789811537141 |
| 源URL | [http://ir.opt.ac.cn/handle/181661/93555]  |
| 专题 | 西安光学精密机械研究所_光学定向与测量技术研究室 |
| 作者单位 | 1.Xi’an Aerors Data Technology Co. Ltd., Xi’an; 710054, China; 2.School of Aerospace Science and Technology, Xidian University, Xi’an; 710071, China; 3.Xi’an Research Institute of Surveying and Mapping, Xi’an; 710054, China; 4.Xi’an Institute of Optic and Precision Mechanics of Cas, Xi’an; 710119, China |
| 推荐引用方式 GB/T 7714 | Sun, Guang,Shen, Lirong,Zou, Tongyuan,et al. Performance Evaluation of Spaceborne Atomic Clock for BDS-3 Basic System[C]. 见:. Chengdu, China. 2020-11-22. |
入库方式： OAI收割
来源：西安光学精密机械研究所
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